I recently finished the Trophy Stadium Finales but it didn't save my time at the end. When I finished it said the typical platinum medal and stuff but, my time switch to 0 seconds and when the trophies in the top left appear and in the end screen. It's not all bad though because it still unlocked the Grand Finale and I got the achievements. Also the crown appears above the stadium, the only thing is that when I click on the level it shows that I have no time and no medal. I think that this happened because I finished at the same time as Top Canine. I have a video here https://www.youtube.com/watch?v=q--algJS9pw